Allegheny County, PA

356 public highway bridges

Allegheny County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Allegheny County, Pennsylvania contains 356 public highway bridges. Roughly 48.9% are rated “Good,” 21.3% “Fair,” and 4.5% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

356
Total Bridges
48.9%
Good
21.3%
Fair
4.5%
Poor Condition

Condition Distribution

Good
48.9% (174)
Fair
21.3% (76)
Poor
4.5% (16)

All Bridges (356)

SR 28 SB

Unknown

Over: RT 8 NB/SB, RT 8 RMPS

ETNA INTERCHANGE SB, Allegheny, PA

Built 1960 ADT: 3,725

FREEPORT RD

Unknown

Over: S.OAKHILL Rd.& SQUAW RUN

AT BLAWNOX INTERCHANGE, Allegheny, PA

Built 1965 ADT: 1,000

FREEPORT RD

Unknown

Over: S.OAKHILL DR.& SQUAW RUN

600'N.OF FOX CHAPEL RD., Allegheny, PA

Built 1965 ADT: 200

SR 0030 EB WB

Unknown

Over: OVER BESSEMER AVE

RT 30 OVER BESSEMER AVE, Allegheny, PA

Built 1937 ADT: 1,000

RAYMOND P SHAFE HW

Unknown

Over: RED MUD HOLLOW RD

1 MI.NORTH OF SR4022, Allegheny, PA

Built 1970 ADT: 1,297

PARKWAY EAST

Unknown

Over: BRADDOCK AVE

PARKWAY EAST-BRADDOCK AVE, Allegheny, PA

Built 1951 ADT: 10,000

CROSSTOWN BLVD

Unknown

Over: FIFTH AVE

I579 SB.OVER 5TH AVENUE, Allegheny, PA

Built 1962 ADT: 5,678

I-579 NB

Unknown

Over: SR28, 8108,EAST OHIO ST.

Vets Bridge N. Appr, Allegheny, PA

Built 1988 ADT: 16,204

MIFFLIN ROAD

Unknown

Over: GLASS RUN ROAD

AT GLENWOOD INTERCHANGE, Allegheny, PA

Built 1963 ADT: 3,319

MIFFLIN RD

Unknown

Over: SR 8059

AT GLENWOOD INTERCHANGE, Allegheny, PA

Built 1967 ADT: 3,590

MIFFLIN RD

Unknown

Over: SR 8059(RAMP A)

GLENWOOD INTERCHANGE, Allegheny, PA

Built 1967 ADT: 5,114

BLVD ALLIES WB

Unknown

Over: FORBES, BIRM E&F, BRADY

Birmingham Bridge, Allegheny, PA

Built 1928 ADT: 9,850

STUBENVILLE PIKE

Unknown

Over: RT 22

STUEBENVILLE PIKE O/TR 22, Allegheny, PA

Built 1964 ADT: 11,072

WEXFORD RUN RD

Unknown

Over: SR 0079 NB SB

WEXFORD RUN ROAD, Allegheny, PA

Built 1974 ADT: 38,645

CALIFORNIA AVENUE

Unknown

Over: FARRAGUT ST, JACKS RUN

JA01 JACKS RUN NO 1, Allegheny, PA

Built 1925 ADT: 100

TENTH STREET BR

Unknown

Over: I-376 AND CSX RR

MA11 SOUTH 10TH ST BRDG, Allegheny, PA

Built 1933 ADT: 33,352

OAKWOOD RD

Unknown

Over: PENSDALE ST,OAKWOOD RUN

OK03 OAKWOOD RUN NO. 3, Allegheny, PA

Built 1984 ADT: 50

CALIFORNIA AV

Unknown

Over: SPRUCE RUN RD,SPRUCE RUN

P50008 AVALON BRDG-PT12, Allegheny, PA

Built 1994 ADT: 50

CENTER AV

Unknown

Over: CAMP HORNE RD,LOWRIES RN

P50004 EMSWORTH - PT05, Allegheny, PA

Built 1973 ADT: 50

RIDGEWOOD AV

Unknown

Over: CENTER AVENUE

474001 OVER CENTER AVE, Allegheny, PA

Built 1940 ADT: 1,000

RAMP F RD

Unknown

Over: BALDWIN RD {6014-02}

PARKWAY RAMP TO I79 N.B., Allegheny, PA

Built 1971 ADT: 4,000

RAMP D

Unknown

Over: RODI RD NB

RAMP D OVER RODI RD.N.B., Allegheny, PA

Built 1962 ADT: 3,248

RAMP H RD

Unknown

Over: RAMPS C,K,& D

Fort Duquesne Bridge, Allegheny, PA

Built 1968 ADT: 2,846

RAMP C

Unknown

Over: RAMP F

Fort Pitt Bridge, Allegheny, PA

Built 1967 ADT: 256

RAMP E

Unknown

Over: SR 0837

Elizabeth Bridge, Allegheny, PA

Built 1947 ADT: 9,655

RAMP E

Unknown

Over: BANKSVILLE RD

RAMP TO SR 0019 NB, Allegheny, PA

Built 1959 ADT: 16,856

RAMP G

Unknown

Over: MADISON,NORFOLKSOUTH RR

Veterans Bridge, Allegheny, PA

Built 1988 ADT: 4,417

STATION ST

Unknown

Over: CRENNELL AVE;BY PAT BSWY

421002 NEXT TO PAT BUSWAY, Allegheny, PA

Built 1997 ADT: 1,000

EAST PROSPECT AV

Unknown

Over: PAT WEST BUSWAY

P50011 50' E/INGRAM AVE, Allegheny, PA

Built 1997

EWING RD

Unknown

Over: BUSINESS 376, SR 3160

EWING ROAD OVER OLD SR 60, Allegheny, PA

Built 1998 ADT: 19,534

SAW MILL RUN BLVD

Unknown

Over: W LIBERTY AVE. SR 3069

0.1 MILE S.LIBERTY TUNNEL, Allegheny, PA

Built 1999 ADT: 21,626

RAMP E SR 8151

Unknown

Over: RAMP C

.1 MILE S. LIBERTY TUNNEL, Allegheny, PA

Built 1999 ADT: 1,920

RAMP D to SR 65 SB

Unknown

Over: CHATEAU ST. N&S RR

SR 65 Marshall Ave. Inter, Allegheny, PA

Built 1972 ADT: 6,000

PERRY HY

Unknown

Over: SR 910

SR 19 OVER SR 910, Allegheny, PA

Built 2002 ADT: 11,206

FREEPORT ROAD

Unknown

Over: SR 79 NB-SB TPK RAMPS

1000 FT EAST OF SR 0019, Allegheny, PA

Built 2003 ADT: 4,629

INTERNATIONAL DR

Unknown

Over: BUSINESS 376, SR 3160

1 MILE S. OF 3089 INTCH, Allegheny, PA

Built 2003 ADT: 5,604

PA TPK (TOLL 43)

Unknown

Over: SR 3017

2.5MI.N. OF FINLEYVILLE I, Allegheny, PA

Built 2002 ADT: 3,742

PA TPK (TOLL 43)

Unknown

Over: SR 3017

2.5MI.N. OF FINLEYVILLE I, Allegheny, PA

Built 2002 ADT: 3,742

PA TPK (TOLL 43)

Unknown

Over: SR0051,PETERS CK,W&LE RR

RAMP W OVER SR0051, Allegheny, PA

Built 2002

PA TPK (TOLL 43)

Unknown

Over: PETERS CR RD, SR0051

RAMP X OVER SR 0051, Allegheny, PA

Built 2002 ADT: 10,539

PA TPK (TOLL 43)

Unknown

Over: SR 0051

RAMP OVER SR 0051, Allegheny, PA

Built 2002 ADT: 10,539

SR 0279 SB

Unknown

Over: VARIOUS CITY STREETS

Fort Duquesne Bridge, Allegheny, PA

Built 1985 ADT: 1

PGH MILLS BLVD

Unknown

Over: SR 0028 NB SB

PGH MILLS MALL, Allegheny, PA

Built 2005 ADT: 20,245

RIDGE ROAD

Unknown

Over: SR 0376 EB WB

SETTLERS CABIN INTERCHANG, Allegheny, PA

Built 2005 ADT: 35,877

STEEN RD

Unknown

Over: SR 0079 NB SB

STEEN RD OVER I-79, Allegheny, PA

Built 2005 ADT: 35,339

RAMP MT-B

Unknown

Over: TURNPIKE ON RAMP(RAMP E)

AIRPORT RAMP FROM SR 60 S, Allegheny, PA

Built 2005 ADT: 356

PA TPK (I-576)

Unknown

Over: POTATO GARDEN RD, RUN

FINDLAY, Allegheny, PA

Built 2006 ADT: 1,084

PA TPK (I-576)

Unknown

Over: SR3071, POTATO GARD RUN

FINDLAY, Allegheny, PA

Built 2004 ADT: 1,084

PA TPK (I-576)

Unknown

Over: SR 0030

FINDLAY, Allegheny, PA

Built 2006 ADT: 1,429

PA TPK (I-576)

Unknown

Over: SR 0030

FINDLAY, Allegheny, PA

Built 2006 ADT: 1,429

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.